Are pond pumps noisy?
High quality pumps such as Oase are silent. Mid range pumps such as Eden are very quiet but as you go down in price the noisier a pump becomes. Some pumps can be easily heard in a shop display but sometimes the noise can be hidden by surrounding sounds. Ask your retailer how noisy the pump is before you buy and remember the rule of thumb – the cheaper the pump the noisier it is likely to be.